A Field Guide to the Dragonkind Trial
Threshing Day Game
Dragonkind is the free official browser game where you enter the Threshing Valley and a dragon decides your fate. Learn every approach route, every brood, and how to survive the bond.
Start here
Your first Threshing
What Is Dragonkind?
What the official Threshing Day game is, where to play it free, and how a run works from sign-in to bond card.
OpenThe Dragon Dex
How to approach every brood — blue, red, green, brown, black, and orange — with the canon rules from Colonel Kaori's field guide.
OpenBonding Quiz
Answer the trial's own questions and see which dragon would pick you — six brood outcomes, one result card.
OpenThe Book
Release date, every edition, and the right reading order for Threshing Day — out September 29, 2026.
OpenFresh from the Valley
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Threshing Day Editions: Deluxe vs Standard, Audio
Every Threshing Day edition compared: color deluxe vs standard, the UK limited deluxe, eBook, full-cast audiobook, and the dramatized audio adaptation.
Book
Field Guide to Dragonkind: Kaori's Quotes & Rules
Colonel Kaori's Field Guide to Dragonkind is an in-world book quoted in Empyrean chapter epigraphs. What it says about each dragon color, with sources.
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Fourth Wing Book 4: Release Date and What We Know
Fourth Wing Book 4 has no title or release date yet. What Rebecca Yarros has confirmed, which dates are rumor, and what is coming before it.
Book
Does Threshing Day Have Spoilers? Who Should Wait
Publishers say Threshing Day contains spoilers and is best read after Onyx Storm. Who should wait, what the thirteen stories cover, and how to stay spoiler-safe.
Book
Where to Buy Threshing Day: Print, Ebook, Audio
Where to buy Threshing Day in the US, Canada and UK: retailer pages we checked for the deluxe and standard hardcovers, ebook, audiobook, and dramatized audio.
Dragons
Dragon Lineages in Dragonkind: Every Bloodline
Dragon lineages by color: the five bloodlines the official Empyrean site names, the extra ones players report, and what the Dragonkind result card shows.
Explore the field guide
The full archive — routes, broods, and the book behind the game.
How a run works
Dragonkind, step by step.
- Enter the Valley
dragonkind.com is free — sign in with an email code
- Make your choices
How you approach each dragon shapes the outcome
- Bond or burn
Roughly a 10% burn risk per run, per Yarros
- Retry after the cooldown
Official: a few hours — players report four
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The Dragon Dex
Six broods, thirty possible dragons.
Blue
Cold and ruthless — never forgives weakness
Red
Never look one in the eye
Green
Lower your eyes — but never back down
Brown
Show no trepidation
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The book behind the game
Threshing Day is Empyrean #3.5 — out now.
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Fourth Wing
2023 — where the Threshing is introduced
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Onyx Storm
January 2025 — book three
- Out now
Threshing Day
September 29, 2026 — thirteen POVs, one legendary day
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Enter the Threshing Valley
The official game is free and runs in your browser. Bring what you learned here — remember, the dragon picks you, not the other way around.